The US International Trade Commission ordered on 9 October 2026 that an investigation be instituted into certain vertical power delivery systems, on a complaint filed by Vicor Corporation of Andover, Massachusetts. The investigation, Inv. No. 337-TA-1526, names 20 respondents, among them Delta Electronics, Infineon Technologies, Luxshare, Monolithic Power Systems, Flex, Celestica, Quanta and Hon Hai (Foxconn).
The Commission’s notice describes the accused products as “vertical power delivery systems and components thereof, used in data center server, artificial intelligence and cloud computing systems, to power artificial intelligence (‘AI’) accelerators, tensor processing units (‘TPU’), graphical processing units (‘GPU’) and central processing units (‘CPU’), and computing systems containing the same”.
The notice says Vicor filed its complaint on September 9, 2026, under section 337 of the Tariff Act of 1930, and a supplement on September 10, 2026. The complaint alleges infringement of certain claims of U.S. Patent No. 10,903,734, which the notice calls the ’734 patent.
On October 9, 2026, the Commission ordered that an investigation be instituted to determine whether there is a violation of section 337 “by reason of infringement of one or more of claims 1-8, 11-14, 18-26, 40-56, 65-71, 80, 81, 83, 84, 90-93, and 95 of the ’734 patent”, and whether an industry in the United States exists as the statute requires.
The notice says the Office of Unfair Import Investigations will not participate as a party, and that the Chief Administrative Law Judge will designate the presiding judge.
The US International Trade Commission’s notice of 9 October 2026 names 20 respondents in Inv. No. 337-TA-1526, Vicor’s complaint over U.S. Patent No. 10,903,734. By the addresses the notice gives, eight are in the United States, five in Taiwan, five in China, one in Germany and one in Canada (our count).
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The key insight: As we read it, the case turns on one patent and on how the Commission describes what is accused: systems used to power AI accelerators, TPUs, GPUs and CPUs. Vicor filed it alongside a licensing pitch that, in its own words, supplier indemnities cannot replace once importation bans apply.
Who Is Named
The Commission’s notice lists 20 respondents. As listed, they are Delta Electronics, Inc. of Taiwan; Delta Electronics (Americas) Ltd. and DET Logistics (USA) Corporation, both at the same Fremont, California address; Infineon Technologies AG of Germany; Luxshare Precision Industry Co., Ltd. and Dongguan Luxshare Technology Co., Ltd. of China; and Monolithic Power Systems, Inc. of Kirkland, Washington, with Chengdu Monolithic Power Systems Co., Ltd. and MPS International (Shanghai) Ltd. of China.
The list continues with Flex Ltd. of Austin, Texas; Celestica Inc. of Canada; Quanta Computer Inc., Quanta Cloud Technology Inc., Quanta Cloud Technology USA LLC and Quanta Computer USA Inc.; Hon Hai Precision Industry Co. Ltd. (d/b/a Foxconn), Foxconn Industrial Internet Co. Ltd. and FII USA Inc.; and Ingrasys Technology Inc. of Taiwan and Ingrasys Technology USA Inc. of San Jose.
By the addresses in the notice, eight of the 20 are in the United States, five in Taiwan, five in China, one in Germany and one in Canada. That count is our arithmetic from the notice.
What Vicor Asks For
The institution notice says Vicor requests that the Commission issue “a limited exclusion order and cease and desist orders” after the investigation. The Federal Register notice of the complaint’s receipt, published on 14 September 2026, adds that Vicor also asked the Commission to impose a bond on the respondents’ alleged infringing articles during the 60-day Presidential review period.
Vicor’s Licensing Pitch
Eight days after filing, Vicor said in a 17 September release that it had granted a non-exclusive license to a new OEM licensee “with the right to procure Vertical Power Delivery (VPD) modules covered by Vicor patents from unlicensed suppliers.” The release does not name the licensee beyond calling it a leading AI OEM in its title.
In the same release Vicor said: “As high-performance compute and network processors migrate to VPD, unlicensed OEMs and hyperscalers may need a license to secure their supply chain.” It added that supply agreements with infringing suppliers “may contain indemnification provisions for recovery of royalties and monetary damages, but cannot overcome importation bans.”
The release does not mention the ITC complaint by name.
What Happens Next, Per the Notice
Responses to the complaint and the notice must be received not later than 20 days after the Commission serves them, the notice says. It warns that failure to respond may lead to a finding on the facts as alleged and “may result in the issuance of an exclusion order or a cease and desist order or both directed against the respondent.”
The Commission also asked the presiding judge to build a thorough record on Vicor’s domestic-industry allegations, including the extent to which they rely on expenditures made by third parties and on expenditures made outside the United States.
The Structural Read
On paper the case is about one patent, the ’734 patent, and the claims the notice lists. The notice names 20 respondents and describes the accused products by their use in data center server, AI and cloud computing systems.
Vicor’s 17 September release sets out its licensing practice: a licensee may procure VPD modules covered by Vicor patents from unlicensed suppliers, and the release says supply agreements’ indemnification provisions cannot overcome importation bans.
As we read it, the two documents fit together: the release describes a licence that lets an OEM keep buying from suppliers Vicor has not licensed, and the complaint asks for orders against named respondents’ imports. Neither document names the OEM licensee.
Vicor, release of 17 September 2026
“As high-performance compute and network processors migrate to VPD, unlicensed OEMs and hyperscalers may need a license to secure their supply chain.”
Three Implications
THE 20 RESPONDENTS The notice says responses are due not later than 20 days after service, and that failure to respond may result in an exclusion order or a cease and desist order or both.
OEMS AND HYPERSCALERS Vicor’s release says unlicensed OEMs and hyperscalers may need a license as processors migrate to VPD, and that early adopters may expect much lower royalty rates.
THE RECORD The Commission asked the presiding judge to examine Vicor’s domestic-industry allegations, including expenditures by third parties and expenditures made outside the United States.
The analysis argues: “The structural bottleneck isn’t computing, it’s electrons.”
As we read it, 337-TA-1526 brings that bottleneck into a trade case: the accused systems are the ones that deliver power to the accelerators, and the relief Vicor seeks is an order on imports.
How 337-TA-1526 got here, dated as the Commission’s two notices and Vicor’s release give it. The notice sets no target or hearing date.
What Is Not Established
As read on 11 October 2026: the institution notice sets no target date for the investigation and no hearing date. It does not say which respondent makes, assembles or imports which accused product.
Vicor’s press room list we read on 11 October showed no separate release about the ITC complaint. The respondents’ responses are not yet on the public record we read, and no finding of infringement has been made.
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The ITC has opened Inv. No. 337-TA-1526 on Vicor’s complaint over one patent, the ’734 patent, against 20 respondents across Delta, Infineon, Luxshare, Monolithic Power Systems, Flex, Celestica, Quanta, Foxconn and Ingrasys. The accused products are, in the Commission’s words, systems used to power AI accelerators, TPUs, GPUs and CPUs, and Vicor asks for a limited exclusion order and cease and desist orders.
A note on sourcing. We read the US International Trade Commission’s notice of institution for Inv. No. 337-TA-1526 (issued 9 October 2026), the Federal Register notice of the complaint’s receipt (14 September 2026) and Vicor’s release of 17 September 2026 in full on 11 October 2026; trade press reports were used only to find them. The country counts are our arithmetic from the addresses in the notice.
Nothing here is a judgement on infringement or a forecast of the outcome, and nothing here is legal, financial or investment advice.
Gennaro Cuofano is a CRO and tech executive who has worked in AI since late 2015, starting with bringing NLP, natural-language generation, voice and chatbot products to the marketing industry. His background is in law and finance: he holds a Master's degree in Law and an International MBA with an emphasis on corporate finance (LUISS Business School and the University of San Diego, 2012), and worked as a financial analyst at a real-estate investment firm in San Diego and as an assistant controller. His work focuses on business model strategy, business engineering and, more broadly, structural analysis: how companies make money, read from their own filings. He created FourWeekMBA and leads research there and at The Business Engineer, his newsletter on AI and business strategy, with over 95,000 subscribers and more than 1,000 published analyses. His writing has also appeared on Entrepreneur, HackerNoon and Search Engine People. Find him on LinkedIn and Substack. See how we source.
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